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Cheap flights from San Diego to Philadelphia from £104

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — PHL
23 Jul — 30 Jul1
1 adult

Cheap flight deals from San Diego to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 July 2025.

Round-trip from

£204

One-way from

£104

Popular in

December

Cheapest in

April

Average price

£356
JetBlue
  • JetBlue
  • 9/12-15/12
  • 2 total stops
  • 19h 33m total
  • San Diego to Philadelphia
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Delta
  • Delta
  • 7/10
  • 1 total stop
  • 8h 13m total
  • San Diego to Philadelphia
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from San Diego to Philadelphia

Cheapest flights from San Diego to Philadelphia
Explore the most affordable flight options available from San Diego to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.

Tue 9/1220:35SAN - PHL
1 stop9h 01mJetBlue
Mon 15/1206:00PHL - SAN
1 stop10h 32mJetBlue
Deal found 18/7£204
Sun 31/813:17SAN - PHL
1 stop7h 42mSpirit Airlines
Sun 7/917:21PHL - SAN
1 stop9h 03mSpirit Airlines
Deal found 17/7£205
Sat 25/1006:20SAN - PHL
1 stop9h 00mDelta
Sat 1/1113:00PHL - SAN
1 stop8h 26mDelta
Deal found 17/7£207
Thu 9/1018:35SAN - PHL
1 stop11h 50mSouthwest
Tue 14/1005:25PHL - SAN
1 stop7h 05mSouthwest
Deal found 18/7£233
Wed 8/1014:11SAN - PHL
1 stop7h 34mUnited Airlines
Sat 25/1006:30PHL - SAN
2 stops9h 27mUnited Airlines
Deal found 17/7£235
Sat 25/1009:27SAN - PHL
Nonstop5h 22mAmerican Airlines
Sat 1/1118:35PHL - SAN
Nonstop5h 46mAmerican Airlines
Deal found 16/7£241
Fri 5/917:30SAN - PHL
1 stop9h 32mAlaska Airlines
Tue 9/918:57PHL - SAN
1 stop20h 59mAlaska Airlines
Deal found 16/7£250

Cheapflights Fare Finder

Customise your flight search to find flights from San Diego to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 July 2025.
Use the filters below to find and compare flights from San Diego to Philadelphia that are best for you.

Fly from

San Diego

Fly to

Philadelphia

Route

Depart

Return

Price

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 9/12

20:35-08:36

1 stop9h 01m

Philadelphia

Mon 15/12

06:00-13:32

1 stop10h 32m

£204

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sun 31/8

13:17-23:59

1 stop7h 42m

Philadelphia

Sun 7/9

17:21-23:24

1 stop9h 03m

£205

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 25/10

06:20-18:20

1 stop9h 00m

Philadelphia

Sat 1/11

13:00-18:26

1 stop8h 26m

£207

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 9/10

18:35-09:25

1 stop11h 50m

Philadelphia

Tue 14/10

05:25-09:30

1 stop7h 05m

£233

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 8/10

14:11-00:45

1 stop7h 34m

Philadelphia

Sat 25/10

06:30-12:57

2 stops9h 27m

£235

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 25/10

09:27-17:49

Nonstop5h 22m

Philadelphia

Sat 1/11

18:35-21:21

Nonstop5h 46m

£241

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 5/9

17:30-06:02

1 stop9h 32m

Philadelphia

Tue 9/9

18:57-12:56

1 stop20h 59m

£250

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 7/10

11:00-22:13

1 stop8h 13m

£104

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 11/8

21:00-09:40

1 stop9h 40m

£110

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 18/8

20:45-09:55

2 stops10h 10m

£125

Flights are sorted by cheapest return flights first.

Deals found on 17/7

Showing 1-10 of 12 results
1
2

Best time to book a flight from San Diego to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from San Diego with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Philadelphia

How far ahead should I book a flight from San Diego to Philadelphia?

Use this chart to determine the optimal time to book a return flight from San Diego to Philadelphia. Price data was last updated on 11 July 2025.

To ensure you get the cheapest price possible for a flight from San Diego to Philadelphia, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Diego to Philadelphia?

Currently, March is the cheapest month in which you can book a flight from San Diego to Philadelphia (average of £648). Flying from San Diego to Philadelphia in July is currently the most expensive (average of £839). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to PHL?

Find hourly flight availability from San Diego to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to Philadelphia as you normally would.

Weekly flight availability from San Diego to Philadelphia

Explore weekly flight availability from San Diego to Philadelphia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 July 2025.

The most flights from SAN to PHL are scheduled on a Monday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated 18 July 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, andDelta from San Diego to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very Good
4,238 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very Good
7,958 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,865 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,907 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this San Diego to Philadelphia flight route?

    The San Diego to Philadelphia flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from San Diego to Philadelphia round-trip?

    Cheapflights users have booked flights from San Diego to Philadelphia round-trip from £204. Other airlines that can offer you cheap pricing are Spirit Airlines, from £205, and Delta, from £207. JetBlue is priced at 39% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from San Diego to Philadelphia one-way?

    One-way options have recently been found by users for as low as £104 on Delta. Other airlines that offer cheap prices include JetBlue from £110 and Southwest from £125 one-way.

  • What are the most reliable airlines from San Diego to Philadelphia?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Diego to Philadelphia on time: American Airlines (78%), British Airways (77%), Iberia (74%).

  • Can I find deals for flights from San Diego to Philadelphia that include hotel bookings?

    Yes. In addition to deals on San Diego to Philadelphia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Philadelphia.

  • Can I find deals for business class flights from San Diego to Philadelphia?

    Yes. Cheapflights offers flight deals from San Diego to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to Philadelphia?

    Currently, March is the cheapest month in which you can book a flight from San Diego to Philadelphia (average of £648). Flying from San Diego to Philadelphia in July is currently the most expensive (average of £839). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Why should you use Cheapflights to find cheap flight tickets from San Diego to Philadelphia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Philadelphia from San Diego.

Can Cheapflights find flights from San Diego to Philadelphia with no change fees?

Yes! Cheapflights helps users easily find flights from San Diego to Philadelphia with no change fees.

Can Cheapflights notify me if prices for flights from San Diego to Philadelphia become cheaper?

Yes, Cheapflights offers price alerts on San Diego to Philadelphia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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